Field evaluation of bio-agents against Chilo partellus (Swinhoe) in Maize

Pal, R. and Singh, Gaje and Prasad, C.S and Ali, Nawab and Kumar, Arvind and Dhaka, S.S (2009) Field evaluation of bio-agents against Chilo partellus (Swinhoe) in Maize. Annals of Plant Protection Science, 17 (2). pp. 325-327.

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Abstract

Among bio-pesticides, bio-agent and neem based insecticides neemarin @ 3.0 lit/ha performed best with infestation of 17.1 % (20 DAS) and 18.9 % (40 DAS), leaf injury rating 3.1 (20 DAS) and 3.3 (40 DAS), number of dead hearts 5.1 (20 DAS) and 5.9 (40 DAS) and 16.9 % of dead hearts (40 DAS). This treatment gave grain yield (30.32 q/ha), net returns (Rs.7935.00 /ha) and cost benefit ratio (6.1). However, imidacloprid (17.8% SL @ 150 ml/ha) was found best among all the treatments with minimum infestation of 15.3 % (20 DAS) and 16.5 % (40 DAS), minimum leaf injury rating 2.1 (20 DAS) and 2.4 (40 DAS), minimum number of dead hearts 2.0 (20 DAS) and 2.6 (40 DAS) and minimum 7.4 % of dead hearts (40 DAS). This treatment was also found best among all the treatments with maximum grain yield (36.29 q/ha), maximum net returns (Rs.11185.00 /ha) and highest cost benefit ratio (9.9

Item Type: Article
Author Affiliation: Department of Entomology, S. V. P. Univ. of Agric. and Tech., Meerut -250 110, India
Subjects: Plant Production
Divisions: Maize
Depositing User: David T
Date Deposited: 29 Nov 2010 21:28
Last Modified: 29 Dec 2010 20:18
Official URL: http://www.indianjournals.com/ijor.aspx?target=ijo...
URI: http://eprints.icrisat.ac.in/id/eprint/756

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